Abstract:

Taking consideration of the existence of manufacturing errors of aerostatic journal bearing, the paper deals with the calculation and theoretical analysis of the static characteristics of aerostatic journal bearing with orifices by Galerkin Finite Element Method (FEM). As manufacturing errors, the geometric form error and the bearing alignment error are considered in the calculation and theoretical analysis. The calculation results show that the geometric form error and the bearing alignment error affect the static characteristics of the bearing in different degrees.

Key words: manufacturing error, aerostatic journal bearing, static characteristics